Assignee
Inventors
- Sang-Eon Park (31 patents)
- Ki Won Jun (33 patents)
- Hyun-Seog Roh (6 patents)
- Seung Chan Baek (9 patents)
- Young-Sam Oh (9 patents)
- Young-Soon Baek (8 patents)
- Ri-Sang Choi (4 patents)
- Taek-Yong Song (6 patents)
US Patent 6693060 · Granted Feb 17, 2004